Look at the picture and answer the following questions. (1) The orbital line in the diagram represents the revolution direction of the earth. (2) The solar terms in the northern hemisphere referred to

Look at the picture and answer the following questions. (1) The orbital line in the diagram represents the revolution direction of the earth. (2) The solar terms in the northern hemisphere referred to in each point in the figure are (1) The direction of the earth's revolution is from west to east;

(2) As can be seen from the schematic diagram of the earth's revolution, the solar terms in the northern hemisphere represented by each point in the diagram are ① the direct sunlight on the Tropic of Cancer, which is the summer solstice in the northern hemisphere; (2) direct sunlight on the equator, which is the vernal equinox in the northern hemisphere; ③ The direct sunlight in latitude is the tropic of Capricorn, which is the winter solstice in the northern hemisphere; ④ The direct sunlight in latitude is the equator, which is the autumn equinox in the northern hemisphere;

(3) According to the schematic diagram of the earth's revolution, when the earth revolves to ② position, the sun shines directly at the equator, which coincides with the vernal equinox in the northern hemisphere, and the time is around March 2 1; When the earth revolves to position ①, the sun directly hits the Tropic of Cancer, which coincides with the summer solstice in the northern hemisphere, and the time is around June 22nd. So today (at the end of May), the earth is located between ② and ① in the orbit of revolution;

(4) As can be seen from the schematic diagram of the earth's revolution, when the earth revolves to position ①, the sun shines directly on the Tropic of Cancer, which coincides with the summer solstice in the northern hemisphere, and the height of the sun is the highest in Zhangzhou at noon. When the earth is located at 3 o'clock in the orbit of revolution, the latitude of direct sunlight is the Tropic of Cancer, which is the winter solstice in the northern hemisphere, and the day length in Zhangzhou is the shortest.

(5) It can be seen from the schematic diagram of the earth's revolution that when the earth revolves to position ①, the sun shines directly on the Tropic of Cancer, which coincides with the summer solstice in the northern hemisphere, and the time is around June 22nd. Day and night are long and short, and it is extremely day in the Arctic Circle.

So the answer is: (1); (2) Summer solstice; Vernal equinox; Solstice of winter; Vernal equinox; (3)②; ①; (4)①; ③; (5) Tropic of Cancer; Summer solstice; Summer; Around June 22; The days are long and the nights are short; An extreme day.